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Número de pieza | SAA1042A | |
Descripción | STEPPER MOTOR DRIVER | |
Fabricantes | Motorola Semiconductors | |
Logotipo | ||
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Advance Information
Stepper Motor Driver
The SAA1042 drives a two–phase stepper motor in the bipolar mode. The
device contains three input stages, a logic section and two output stages.
The IC is contained in a 16 pin dual–in–line heat tab plastic package for
improved heatsinking capability. The center four ground pins are connected
to the copper alloy heat tab and improve thermal conduction from the die to
the circuit board.
• Drive Stages Designed for Motors: 6.0 V and 12 V: SAA1042V
Drive Stages Designed for Motors: 6.0 V and 24 V: SAA1042AV
• 500 mA/Coil Drive Capability
• Built–In Clamp Diodes for Overvoltage Suppression
• Wide Logic Supply Voltage Range
• Accepts Commands for CW/CCW and Half/Full Step Operation
• Inputs Compatible with Popular Logic Families: MOS, TTL, DTL
• Set Input Defined Output State
• Drive Stage Bias Adaptable to Motor Power Dissipation for
Optimum Efficiency
SAA1042, A
STEPPER MOTOR
DRIVER
SEMICONDUCTOR
TECHNICAL DATA
16
1
V SUFFIX
PLASTIC PACKAGE
CASE 648C
www.DataSheet.co.kr
Figure 1. Representative Block Diagram
VZ
7 Clock
10 CW/CCW
8 Full/
Half Step
VCC
11
Logic
9
Gnd
VM
15
Driver
VD
2
3
L1
1 L2
M
Driver
6
Driver Bias
RB
Set
A
16
L3
14 L4
MOTOROLA ANALOG IC DEVICE DATA
PIN CONNECTIONS
L2 1
VD 2
L1 3
4
Gnd
5
Set/ 6
Driver Bias
Clock 7
Full/Half 8
Step
(Top View)
16 L3
15 VM
14 L4
13
Gnd
12
11 VCC
10 CW/CCW
9 Gnd
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
SAA1042V
Plastic DIP
TJ = – 30° to +125°C
SAA1042AV
Plastic DIP
© Motorola, Inc. 1995
1
Datasheet pdf - http://www.DataSheet4U.net/
1 page SAA1042, A
Figure 7. Typical Application
Selectable Step Rates with the Time Base Derived from the Line Frequency
12 V
MC14046B
220 k
15
220 V
50 Hz
Phase
Comp
14
0.1 µF 1 5 3
16
29
82 k
8.2 µF
VCO 4
11 6
7
4.7 nF
120 k
f0 = 1400 Hz
12 V
14 3
4
5
16
9
11
2 7 12
12 V 12 V
VZ = 3.9 V
Steps/Sec
12.5
25
50
Full
Half
11 15
8
100 Clock
7
200
400
800
CW
CCW
10
9
2
3
1
16
14
6
M
RB
56 k
Set Input
35
Set MC14007
Figure 8. Thermal Resistance and Maximum Power
Dissipation versus P.C.B.www.DataSheet.co.kr Copper Length
100
80
60 RθJA
5.0
Printed circuit board heatsink example
L
2.0 oz
Copper
4.0
L 3.0 mm
Graph represents symmetrical layout 3.0
40 2.0
20 PD(max) for TA = 70°C
1.0
00
0 10 20 30 40 50
L, LENGTH OF COPPER (mm)
MOTOROLA ANALOG IC DEVICE DATA
5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet SAA1042A.PDF ] |
Número de pieza | Descripción | Fabricantes |
SAA1042 | STEPPER MOTOR DRIVER | Motorola Inc |
SAA1042A | STEPPER MOTOR DRIVER | Motorola Semiconductors |
SAA1042V | STEPPER MOTOR DRIVER | Motorola Inc |
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